For your questions I answer from my understanding: I just added the pipe and the power boost is very noticeable. I actually ran just a tune with stock exhaust for a few track days and felt a big difference. It does run differently than stock settings but I really like what it’s done for more consistent and stronger power delivery. I have had the ECU tuned for a couple of months and had no problems. I have a ‘20 with a BT Moto flash and 3/4 Yosh pipe. I am concerned that I would do something stupid and regret or damage the bike as I cant afford another one. I am an experience rider and have always ran my motorcycles stock, but really want to hear that crossplane but just don't know much about this area. Is there going to be some sort of load on the engine ?Īnyone here ran there R1 2020 + without tune and had issues? Is there going to be an effect to mileage / gas consumption ? I am wondering, what possible damage can untuned ECU will cause with an aftermarket exhaust. What would happen if I don't do any ECU tune? I am thinking of getting this YAMAHA YZF R1 (2015 - 2016) - R1M YAMAHA YZF R1 (2017 - 2019) - R1M YAMAHA YZF R1 (2020) - R1M CR-T Muffler, with de-cat link pipe and titanium mesh on exit pipe () But we need to do ECU tuning / mapping on aftermarket exhaust to fix the fuel vs air ratio ? Is that correct?

Now, I don't have a lot of experience or knowledge with exhaust / ecu mapping + tuning.Ĭorrect me if I am wrong. I am looking to get an aftermarket exhaust for my 2021 R1.

2015 yamaha r1 ecu flash